R

Forecast Engine: Predict Next Month

Fit a real regression line to six months of data, read the trend, and forecast what comes next, using the modeling R data scientists actually ship.

RIntermediatePortfolio piece

What you'll be able to build

Fit a real regression line to six months of data, read the trend, and forecast what comes next, using the modeling R data scientists actually ship. Along the way you pick up real, transferable R skills, not just this one project:

  • lm() model fitting with formula syntax
  • extracting coefficients with coef()
  • predict() on new data.frames
  • reading summary() output (R-squared)
  • interpreting slope/intercept as a story
  • separating training data from prediction input

A course like this one

Yours is built from your own placement, so module count and depth will differ. This map shows what a intermediate-level R learner building Forecast Engine actually gets.

  1. Module 1: Vectors, values, and the shape of R5 lessons

    Builds the vector for your forecast engine.

  2. Module 2: Data frames, factors, and tidy shapes5 lessons

    Builds the apply pipeline workflow for your forecast engine.

  3. Module 3: Control flow and predicting vectorized output5 lessons

    Builds the data frame that powers your forecast engine.

  4. Module 4: Functions, the apply family, and debugging5 lessons

    Builds the reusable factor for your forecast engine.

  5. Module 5: Designing a statistical pipeline5 lessons

    Builds the simulation for your forecast engine.

  6. Module 6: Shipping a reproducible analysis3 lessons

    Builds the summary table for your forecast engine.

How the lessons actually work

Every lesson has you predict what a piece of R code will output before you run it, then run it for real in your browser and fix what you got wrong. Each module ends in a challenge gate with hidden tests, so you can't advance until your code actually works. The course closes with a capstone that assembles everything into Forecast Engine, and a runnable proof page tied to your own code.

Common questions

How long does the Forecast Engine: Predict Next Month course take?

about 7 hours, across 6 modules and 28 lessons, at roughly 15 minutes per lesson. Your own course may run shorter or longer, since it's sized to your placement result, not a fixed template.

Do I need experience?

Some. This is an intermediate-tier R project, so it assumes you're comfortable with R basics and pushes past them.

How much does it cost?

$15 one-time, no subscription. The first module is free, so you can see exactly how the course teaches before you pay for the rest.

No subscription. Module one is free.

Build my Forecast Engine